How far is Sundown, TX from Plano, TX?
The driving distance from Sundown, TX to Plano, TX is about 374.4 miles (602.6 km), with a travel time of about 05h 59m by car.
- The straight-line flight distance is about 335.9 miles (540.6 km).
- For a round trip, plan for roughly 11h 59m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 05h 59m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Village in Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Sundown and Plano.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sundown and Plano.
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1
Start on East Richardson Street
7 m · 3 sec · East Richardson Street
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2
Turn right onto South Slaughter Avenue
1.4 km · 2 min · South Slaughter Avenue
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3
Continue on North FM 303
2.4 mi · 3 min · North FM 303
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4
Turn right onto West FM 1585
10 mi · 10 min · West FM 1585
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5
Keep slight right
16.2 mi · 16 min
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6
Turn left
5.8 mi · 7 min
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7
Take the exit slight right toward Spur 327
2.1 mi · 3 min
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8
Merge slight left
5.9 mi · 7 min
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9
Take the exit slight right toward US 84: Slaton, Post
1355 ft · 33 sec
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10
Turn straight onto Southeast Loop 289
1603 ft · 34 sec · Southeast Loop 289
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11
Take the ramp straight
635 ft · 17 sec
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12
Merge slight left onto Slaton Road
2.9 mi · 3 min · Slaton Road
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13
Continue on East Highway 84
6.9 mi · 7 min · East Highway 84
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14
Continue on Trooper Jerry Don Davis Memorial Highway
4.5 mi · 5 min · Trooper Jerry Don Davis Memorial Highway
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15
Continue on East Highway 84
20 mi · 20 min · East Highway 84
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16
Continue on North US Highway 84
1 mi · 1 min · North US Highway 84
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17
Turn left onto East 15th Street
734 ft · 17 sec · East 15th Street
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18
Turn right onto Ralls Road
1863 ft · 38 sec · Ralls Road
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19
Turn straight onto North Avenue F
1.1 mi · 2 min · North Avenue F
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20
At the end of the road, turn left onto US Highway 84
73.9 mi · 1 hr 14 min · US Highway 84
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21
Keep slight left to continue on I 20 East, US 84 East: Abilene
183 mi · 3 hr 5 min
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22
Keep slight left to continue on West Freeway
5.6 mi · 6 min · West Freeway
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23
Take the exit slight right toward I 820 North
1.4 km · 2 min
-
24
Merge slight left onto Jim Wright Freeway
12.6 mi · 14 min · Jim Wright Freeway
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25
Continue on Northeast Loop
1398 ft · 18 sec · Northeast Loop
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26
Keep slight left to continue on I 820 TEXpress
6.9 mi · 7 min · I 820 TEXpress
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27
Continue on SH 121/183 TEXpress
4.4 mi · 4 min · SH 121/183 TEXpress
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28
Continue on SH 183 TEXpress
11.7 mi · 12 min · SH 183 TEXpress
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29
Keep slight left to continue on Loop 12 TEXpress
2.6 mi · 3 min · Loop 12 TEXpress
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30
Merge slight left onto North Walton Walker Boulevard
1.3 km · 54 sec · North Walton Walker Boulevard
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31
Merge slight right onto North Stemmons Freeway
2.1 mi · 3 min · North Stemmons Freeway
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32
Take the exit slight right toward I 635 East
2673 ft · 50 sec
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33
Merge slight left onto Lyndon B Johnson Freeway
4.4 mi · 5 min · Lyndon B Johnson Freeway
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34
Continue on Lyndon B. Johnson Freeway
2.6 mi · 3 min · Lyndon B. Johnson Freeway
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35
Take the exit slight right toward US 75 North, US 75 South: McKinney, Dallas
1825 ft · 22 sec
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36
Keep slight left to continue on US 75 North: McKinney
1.4 km · 1 min
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37
Merge slight left onto North Central Expressway
5.3 mi · 6 min · North Central Expressway
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38
Take the exit slight right toward Plano Parkway, 15th Street
2162 ft · 53 sec
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39
Turn straight onto North Central Expressway
1.4 mi · 2 min · North Central Expressway
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40
Turn right onto East 15th Street
3101 ft · 1 min · East 15th Street
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41
Arrive at your destination
0 m · 1 sec · East 15th Street
Car Route Details
A richer read on the saved driving route between Sundown and Plano.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 20 East
Keep slight left to continue on I 20 East, US 84 East: Abilene
183 mi · 03h 05m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny leaving Sundown and Mostly Cloudy near Plano.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sundown to Plano?
The road trip is about 374.4 miles (602.6 km) and usually takes 05h 59m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Impact is a useful midpoint, sitting about 200.9 miles from Sundown and 173.5 miles from Plano.
How much longer is the road route than the straight-line distance?
The direct path is about 335.9 miles (540.6 km), while the road route adds roughly 38.5 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 5:00 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $49.92 one way or $99.84 round trip. Estimated CO2 is about 117.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Sundown and Mostly Cloudy near Plano.
Flight Path Map
This map shows the direct air route between Sundown and Plano. Straight-line distance: 335.94 mi (540.64 km).
#1 Sundown
City in Hockley County, Texas, United States
| Population | 1,414 |
| Coordinates | 33.4562100, -102.4893600 |
| Altitude | 1079 |
| Country | United States |
#2 Plano
The second most populous city in Texas and the center of the Dallas-Fort Worth metropolitan area.
| Population | 291,296 |
| Coordinates | 33.0198400, -96.6988900 |
| Altitude | 203 |
| Country | United States |
End: East 15th Street (-96.698873, 33.019694)
Estimated Travel Time
Distance: 603 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 28m |
| 40 mph (64.37 km/h) | 09h 21m |
| 50 mph (80.47 km/h) | 07h 29m |
| 60 mph (96.56 km/h) | 06h 14m |
| 70 mph (112.65 km/h) | 05h 20m |
| 80 mph (129 km/h) | 04h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $49.92 | $99.84 |
| Mid-grade | $4.25 | $56.17 | $112.34 |
| Premium | $4.59 | $60.65 | $121.29 |
| Diesel | $3.99 | $52.75 | $105.50 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Texas · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.